👉 Urethans are a group of bacteria that live in the urinary system, specifically in the bladder and ureters. They play an important role in maintaining the function of the urinary tract by breaking down waste products, producing mucus to protect the膀胱壁,and secreting fluid to maintain the balance of electrolytes and nutrients in the urine. Urethans are also involved in the production of sperm and other reproductive cells during spermatogenesis.